28800294580 has 48 divisors (see below), whose sum is σ = 62250128640. Its totient is φ = 11184421248.

The previous prime is 28800294547. The next prime is 28800294613. The reversal of 28800294580 is 8549200882.

It is an interprime number because it is at equal distance from previous prime (28800294547) and next prime (28800294613).

It is a self number, because there is not a number n which added to its sum of digits gives 28800294580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300591 + ... + 384649.

It is an arithmetic number, because the mean of its divisors is an integer number (1296877680).

Almost surely, 2^28800294580 is an apocalyptic number.

28800294580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28800294580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31125064320).

28800294580 is an abundant number, since it is smaller than the sum of its proper divisors (33449834060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28800294580 is a wasteful number, since it uses less digits than its factorization.

28800294580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84568 (or 84566 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 28800294580 in words is "twenty-eight billion, eight hundred million, two hundred ninety-four thousand, five hundred eighty".